Set long ago in the Iron Age, the residents of a small village have been living in fear as every few years, eight village youths are taken to the capital's palace, where they are placed in an underground layer as sacrifices for the mythical god beast - the Minotaur. Theo (Tom Hardy) is haunted by the loss of his love as a sacrifice years ago, but believes that the beast is not real and that she still lives in the layer, so he sets out with the latest group of sacrifices to find out the truth.